Hi,
I haven't had this experience, but it is within the realm of possible side effects to entering a meditative state, or, the redistribution and rebalancing of qi. I remember one , very energy sensitive person, moving with my movements. If I grabbed, he was pulled forward, if I pointed my sword fingers, I could see his body react. Every action had a physical movement response, on their part.
The laughing is a release of energy. Let it flow.
Just follow the guidelines , be respectful, humble and caring.
In the times I have worked on someone, I could always see energy being released, just in helping them relax , prior to doing anything other than that.
love,
gallen
